Next-gen superjunction MOSFETs deliver lower EMI & RDS(ON)
Toshiba Electronics Europe is set to announce the development of its next generation of superjunction (SJ) deep trench semiconductor technology for high-efficient power MOSFETs. Devices based on the DTMOS V process operate with lower EMI noise and reduced on resistance (RDS(ON)) compared to previous DTMOS IV MOSFETs.
As with the previous DTMOS IV semiconductor technology, DTMOS V is based on a single epitaxial process involving ‘deep trench etching’ followed by P-type epitaxial growth. The deep trench filling process results in a narrowing of cell pitch and a lowering of RDS(ON) when compared with more conventional planar processes. Toshiba’s deep trench process allows an improved thermal coefficient of RDS(ON) compared to conventional super junction MOSFETs using multi epitaxial growth process
With DTMOS V, Toshiba has been able to reduce RDS(ON) of the DPAK TK290P60Y by up to 17% compared with the lowest RDS(ON)available from the TK12P60W DTMOS IV MOSFET. The company has also further optimised the trade-off between switching performance and EMI noise
DTMOS V MOSFETs will simplify the design and improve the performance of power conversion applications, including switching power supplies, power factor correction (PFC) designs, LED lighting and other AC/DC applications. The first MOSFETs based on the fifth generation process will offer ratings of 600V and 650V and be supplied in DPAK (TO-252) and TO-220SIS (smart isolation) packaging. Maximum ON resistance ratings will range from just 0.29Ω to 0.56Ω.
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